Photographic element having a transparent magnetic recording lay

Details Photographic element having a transparent magnetic recording lay Photographic element having a transparent magnetic recording lay

1994-06-01

1995-07-18

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Structurally defined

430140, 430523, 430501, 428694B, 428694BG, 428694BY, 428694BR, 428694BN, 428694BA, G03C 176, G11B 5708

Patent

active

054340373

ABSTRACT:
A photographic element comprising a support having provided thereon a light-sensitive layer, a transparent magnetic recording layer, and a transparent abrasive layer coated over the transparent magentic recording layer, the transparent magnetic recording layer comprising a transparent polymeric binder and ferro-magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 3.times.10.sup.-10 mg/.mu.m.sup.3, the abrasive layer comprising a transparent polymeric binder and abrasive particles having a median diameter of from about 0.2 to about 0.4 .mu.m, a specific surface area greater than 5 m.sup.2 /gm, a Mobs hardness of at least 6 and being present in an amount of at least about 5.times.10.sup.-12 mg/.mu.m.sup.3.

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